1.

Which of the following is an amphoteric hydroxide?(1)  Sr(OH)2 (2)  Ca(OH)2 (3)  Mg(OH)2 (4)  Be(OH)2

Answer»

Correct option  (4) Be(OH)2

Explanation:

Be(OH)2 amphoteric in nature, since it can react both with acid and base

Be(OH)2 + 2HCl  BeCl2 + 2H2O

Be(OH)2 + 2NaOH  Na2 [Be(OH)4]



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